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Personalized weight loss: Gene-Tailored drug shows promise

NCT ID NCT03525002

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether a drug called bromocriptine, which boosts dopamine in the brain, can help people with obesity lose weight. The key twist: the drug's effect may depend on a person's genetic makeup, specifically a gene called FTO. 120 obese adults were given either bromocriptine or a placebo for 18 weeks, and researchers tracked weight changes and brain responses to food cues.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

120 people

The number who actually took part.

Started

May 2018

Finished

Aug 2024

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 70 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Body mass index (BMI) between \>30 kg/m². * Understand and voluntarily sign an informed consent document prior to any study related assessments/procedures. * Females of childbearing potential (FCBP) must agree to utilize a reliable form of contraception simultaneously or practice complete abstinence from heterosexual contact while participating in the study. * Males must agree to use a latex condom during any heterosexual contact while participating in the study and to refrain from donating semen or sperm while participating in this study. Exclusion Criteria: * Women during pregnancy and lactation. * History of hypersensitivity to the investigational medicinal product or to any drug with similar chemical structure or to any excipient present in the pharmaceutical form of the investigational medicinal products. * Participation in other clinical trials or observation period of competing trials up to 30 days prior to this study. * Diabetes mellitus * Treatment with Methyldopa, levodopa, dopamine agonists, metoclopramid, domperidon, glycerol nitrate, griseofulvin, azol-antimycotic drugs, macrolide-antibiotics, octreotide, orlistat, tamoxifen, liraglutide * Any relevant cardiovascular disease, e.g. myocardial infarction, acute coronary syndrome, unstable angina pectoris, Percutaneous transluminal coronary angioplasty (PTCA), heart failure (NYHA III-IV), stroke or transient ischemic attack (TIA) * Acute or chronic viral hepatitis or liver cirrhosis * Impaired renal function, defined as estimated Glomerular Filtration Rate (eGFR) ≤ 60 ml/min (MDRD formula) as determined during screening. * Medical history of cancer and/or treatment for cancer within the last 5 years. * Claustrophobia * Any other clinically significant major organ system disease at screening such as relevant gastrointestinal, neurologic, psychiatric, endocrine (i.e. pancreatic), hematologic, malignant, infection or other major systemic diseases making implementation of the protocol or interpretation of the study results difficult. * Presence of any contraindication for the conduct of an MRI investigation, such as cardiac pacemakers, ferromagnetic haemostatic clips in the central nervous system, metallic splinters in the eye, ferromagnetic or electronically operated active devices like automatic cardioverter defibrillators, cochlear implants, insulin pumps and nerve stimulators, prosthetic heart valves etc. * hyperthyroidism * therapy refractary hypertension * peripheral arterial disease * Parkinson´s disease * Known current presence or history of one of the following psychiatric diseases: depression, mania, anxiety and panic disorder, obsessive-compulsive disorder, schizophrenia, psychosis, addiction * pituitary disease * treatment with bromocriptine during 12 month before entering the trial * dementia * gastric or intestinal ulcer * Persons with limited temperature sensation and / or elevated sensitivity to warming of the body * Persons with a hearing disorder or a increased sensitivity for loud noises * smoking * Refusal to get informed of unexpected detected pathological findings Any other clinical condition that would jeopardize subjects' safety while participating in this clinical trial.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • University Hospital Cologne

    Cologne, Germany

  • University Hospital Luebeck

    Lübeck, Germany

  • University of Tuebingen, Department of Internal Medicine IV

    Tübingen, 72076, Germany

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Other studies related to the condition(s) this trial covers.